GRAND ISLE, LOUISIANA

Average Temperature

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		21.4		13.9		14.6		17.2		21.1		24.8		27.8		28.4		28.4		26.9		22.6		17.3		14.3

Average High Temperature

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		25.9		18.4		19.2		21.9		25.4		29.1		31.8		32.7		32.8		31		27.7		22.2		19.2

Average Low Temperature

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.9		9.3		9.7		12.2		16.8		20.4		23.7		24.1		24.1		22.8		17.6		12.9		9.4

Highest Recorded Temperature

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		38.3		29.4		27.8		29.4		32.2		35.6		37.8		37.8		38.3		36.1		35.6		30.6		31.1

Lowest Recorded Temperature

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-8.9		-8.9		-7.2		---		5.6		8.3		18.3		17.8		19.4		12.2		5.6		-1.1		-3.3

Average Number of Days Above 90F/32C

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		76.6		---		---		---		0.1		2.8		15.1		21.9		22.8		12.4		1.6		---		---

Average Number of Days Below 32F/0C

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3.8		1.7		0.8		0.2		---		---		---		---		---		---		---		0.3		0.8

Average Precipitation

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1509		120		125		112		102		71		148		191		171		148		114		98		111

Average Number of Days With Precipitation

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		87		8		7		6		5		5		9		11		10		9		5		5		7

Most Reported Precipitation in a Month

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		501		461		318		362		485		233		351		331		375		431		501		417		498

Least Reported Precipitation in a Month

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		8		5		9		10		---		7		30		24		---		3		---		18

Most Precipitation Reported in a Day

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		292.1		213.6		120.7		158.2		228.6		119.1		188		161.8		215.9		232.7		292.1		152.7		180.1

Avg. No. of Days w/Precip. Above 0.1in/2.5mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		63.7		6.1		5.3		4.7		3.3		3.6		7		7.5		7.7		6.5		3.9		3.5		4.6

Avg. No. of Days w/Precip. Above 0.2in/5mm

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		67		6		5		5		4		4		7		8		8		7		4		4		5

Avg. # of Days w/Precip. Above 0.4in/10mm

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		35		3		3		3		2		2		4		4		4		3		2		2		3

Avg. No. of Days w/Precip. Above 0.5in/13mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		34		2.9		3.2		2.8		2.2		2.2		3.4		4.2		3.4		2.9		2.2		2.1		2.5

Avg. No. of Days w/Precip. Above 1in/25mm

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		17		1		2		1		2		1		2		2		2		1		1		1		1

Average Snowfall

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		0.2		---		0.2		---		---		---		---		---		---		---		---		---		---

Most Snow Reported in a Month

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		7.1		---		7.1		---		---		---		---		---		---		---		---		---		---

Heating Degree Days

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		138.9		50		28.3		11.7		---		---		---		---		---		---		0.6		12.2		36.1

Cooling Degree Days

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1708.3		12.8		10.6		32.2		93.3		200.6		285		312.8		313.3		257.2		140.6		38.3		11.7

Growing Degree Days

Years on Record: 64

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4294.5		120.6		128.7		222.2		331.7		458.1		535		571.8		571.8		506.7		389.2		220		132.6

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		11		11.6		12.4		13.3		14.1		14.4		14.2		13.6		12.7		11.8		11.1		10.7

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.5		10.3		12.7		16.5		20.7		22.8		20.9		20.3		19		17.4		15.3		12.1		9.9

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.3		4.1		5.1		6.3		7.2		8		8.9		8.7		7.9		6.7		5.2		4.1		3.8

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.4		13.2		15.3		18		20.3		20.8		18.6		18.3		18.2		18.1		18.2		15.6		13.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17		13.4		14.3		16.9		20.4		21.7		17.6		16.9		16.5		17		18.2		16.6		13.9

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.5		10.3		12.7		16.5		20.7		22.8		20.9		20.3		19		17.4		15.3		12.1		9.9

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.7		4.3		5.4		6.7		8		8.8		9.1		8.9		8.2		7.1		5.7		4.6		4

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.7		17.6		19.4		21.9		23.5		23.5		20.9		20.8		20.9		21		22.8		19.7		16.7

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.9		20.2		20.5		23.5		26.8		27.6		22.5		22		21.6		21.9		25.9		23.4		19.3

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.5		7.7		9.9		14.2		16.3		18.3		18.2		17.8		15.4		14.2		12.4		8.9		8.2

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.6		3.5		4.5		5.5		6.2		7		8.3		8.1		7.4		6.1		4.1		3.4		3.3

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.8		9.2		11.3		15.2		15.8		16.9		16.4		16.2		14.7		14.5		14.2		10.6		10.4

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.2		7.5		8.6		12.5		12.7		14		13.2		12.9		10.6		11.2		12		9.1		9.4